The Dynam Turbojet is modeled after the famous Citation II Model 550, which was a direct development from the Citation I. The earlier aircraft's success in the market led the manufacturer to believe there was demand for a larger aircraft that utilized the same design philosophy. The result was the Citation II, which had a maximum seating capacity of 10. In addition to more seats, the plane had more powerful JT15D-4 engines (2,500 lbf (11 kN) thrust per engine), increase of fuel capacity to approximately 5000 lbs, faster speeds and longer range. Dynam's 550 Turbo Jet Twin 64mm EDF PNP is virtually ready to fly! All you need is a 4 channel radio, 4 channel receiver and 3S 11.1V 2200 mAh Li-Po battery and you're ready to fly this scale business jet! This upgraded version includes electronic retractable landing gear and has cut-outs for optional flaps.